Baling-press.



H. L. WHITMAN.

BALING PRESS.

APPLICATION IILBD JULY 1, 1912.

1,059,248. Patented Apr; 15, 1913.

2 SHEETS-SHEET 1.

COLJJMBIA PLANOURAPH co. WASHINGTON D c H. L. WHITMAN.

BALING PRESS.

APPLICATION TILED JULY 1, 1912.

Patented Apr. 15, 1913.

2 SHEETS-SHEET 2.

STATES PATENT OFFIGE,

HEM; L. WHITMAN, or sr. LOUIS, sMIssoUnI.

mime-Passe.

Specification of Letters Patent.

Application 'filed July 1, 1912.. Sria1.No..f706,907i

To all whom it mag concern Be it known that :I, HnNRYL. WrnTMaN, acitizen of the United. States of America,

and a resident of the city of St. Louis and State of Missouri,haveinvented certain new and useful Improvements in Balin'gr Presses, ofwhich the following is a full,

clear, and exact description, rei erence being, had to the accompanyingdrawings,

forming a part of thisspecification.

invention relates to aibaling press, the

present invention pertaining particularly to a baling ipress powermechanism, including' (a pull back device for the plunger 'opjected toend thrust only, with avoidance of strain so applied thereto as to causethe pitman to be bent when it as operated for the compression stroke ofthe plunger.

Figure I is asideelevation of a baling press having my improvementincorporated therein. Fig. II isla cross section taken on line II-JI,Fig. III. Fig. IIIis a 'top or plan view of the power mechanism, withthe parts shown in the positions theyoccupy during the initialcompression stroke of the wplungerand pitma-na Fig. IVis a top: or planview of thevrear end ofthe pitman and pitman operatingmembersi of thepower mechanism, with. the parts shown: in the position assumed at thecompletion of the com. pression stroke.

In the drawings :-A designatesthebaling chamber of my press, which ispreferably supported by ground wheels 13, and isc0n- .nected by a reach'Cto the axle. ID at the press, supported by ground power end of thewheels E.

chamber A, and G the pitmanconnected to said plungerandrextendingtherefrom to the power end ofthe press. The provided with abifurcatedhead 1,. at the more particularly mentioned, operate when mypress is in:service.

.5 designates the power :head of the sweep,

crating pit-man, and means whereby such. pitman is so controlled that itwill besub F "is a plunger, operable in the balin g .pitman.

pitman G is rear or outer end of which is a concave seat Patented Apr.15, 1913.1

loosely fitted to the post 4;, and adapted to [be rotated ther'earoundin a mannercommonin 1 the operation of baling presses, in 'order thatendwise movement "of the plunger opcrating pitman G maybe obtainedinpmovmg the plunger F in the balingnhamber rfOI its fcompression.stroke. a

The power. head comprises horizontalf arms, in which are journaled*arrtifriction rollers 6 thatare adapted .to engagethe seat 20fthepitman heads 1 to drive the \pitman Gr toward the ba ling chamber forcompression stroke of the plunger of the press.

Inasmuch as the pitman G is movable. endwise and the antifrictionrollers 6 carried the sweep powerihead are movable in a circularpatha-roundthe vertical post 4,!1t 1 is important that said pitman be socontrolled during its endwise movements in: a CllfiIiGOtlOIl toward thebahng chamber, and

then upon its return stroke that its head 1 1 will be so positionedtoward said antifriction rollers as to cause the power head to exert aforce directed in {a rline with the axis of which would be incurred ifthe force We're applied at. apoint offset from the line of its axis.

It is one of the main objects of my present improvement to provide meanswhereby the balingpress pitman is returned accurately to a positionrthatwould make it possible for the power'head to exertits force accuratelyin line with the axis of the rpitman, and so control the pitman duringits powerstroke 111St0 avoid undue strain thereupon, such as would i beincurred if the force directed.

thereagainst by the power head was not directed strictly in line withthe axis of the To attain the. object sought, .1

make use of the parts about to herdescribede 7 designates a pull backlever for oper- =ating1the jpltman G upon its return stroke after it hasbeen advanced to move :the

plunger of the press for a compression stroke.

mechanism, and is provided at its inner end This pull back lever isloosely fitted to the-vertical post 4 of the power.

with a plurality of teeth 8; In the outer:

end of the lever is a longitudinal slot 9 that .pitman-G', and whichreceives avertical pin is operable inthe bifurcated head 1' of the.

10 in said head, that serves to connect the pull back lever to thepitman head.

11 is a segment gear pivotedat 12 to the.

plate 3, located beneath the power head 5.

the latter, to avoid strain upon the latter,

' This segment gear is provided with teeth that mesh with the teeth ofthe .pull back lever 7, and the end of the segment'gear' farthestremoved from the axis of the sweep 5 and pull back lever 7 is locatedinthe path of travel of the antifriction'rollers 6 carried by the powerhead, being furnished with a cam 14: with which saidantifriction rollersengage, subsequently to impartation' of forwardmovements of the plungerGr for compression strokes of the balinge "press plunger.

15 des gnates a stopsurmounting the plate 3, and arranged in the path oftravel;- of the pull back lever 7 the said stop SGI'VIDg,

as a means for limiting the' movement, of

the said pull back lever during the forward stroke'of the pitman. J p

16 designates a controllerlink by which the pitman G is -*caused topartake of its forward and backward strokes in positively I definedlines of movement when-operated in one direction by the power head 5,and

in the opposite direction by the pull back lever ,7. Inasmuch as thepitman has slot and pin, connectionwith the pull hackle-5' ver, it ishighly essential that the means, such as the controller link 16 be'provided, in order that when the pitman is drawn rearwardly by the pullback lever, it; will be, so positioned that the thrust imposed upon thepitman by the sweep will' be directly in line with the longitudinalcenter of the pit: man, thereby avoiding lateral strain upon the pitmanthat would result, if the thrust were applied at a point other than the1on gitudinal center of, the pitman. The con troller link l6 performsthe intended oflice' in a highly efiicient manner that will be quiteobvious. The ,said link has pivotal connection at 17 with the reach C,or the" part associated therewith, and is pivotally attached to" thepitman by any suitable means, such as a collar 18.

It is quite desirable that the pitman and pull back lever of my powermechanism be so arranged that they will operate freely; above the reachof the baling press, and the plate or frame at the rear end of saidreach, with a minimum amount of friction between the pitman and pullback lever, and the parts beneath them; To provide for such. minimumamount of friction, I furnish the pull back lever with a shoe 7 which is0p-.

erable upon the plate or frame 3 during thedirectly in line with thelongitudinal center of said pitman; As the pitman advances from theposition in Fig. III to the position seen in Fig. IV, it impartsmovement; to

the pull back lever 7, which latter member,

by cooperation with the segment gear11, moves said segment gearfrom theposition seen in'Fig. III Ltothe positionseenin Fig.. "IV, at which timethepull back leverrests against the stop 15. Then, during thecontinuedmovement of the power head,fthe"an Y tifriction roller 6 that'hasoperated against the pitman, moves in the direction indicatedfromthe'pitman, and passing into contact bythe arrows Fig. IV, becomingseparated with the'cam 14 on the segment gear, against;

which it operates to move the latter in the direction indicated by thearrow Fig. IV, i

and to cause it to impart a reverse'mov'ementto the pull back lever 7.As a consequence, the p tman is returned to its former position by arearward stroke, and the power:

head and antifriction roller ,6 .b'ecomingsep,

arated ifrom the segment .gearythe power 7 head continues its movementuntil they other antifriction roller 6'moves into engagement withthehead of the pitman Gr for the' next operation of such pitman,whichhas been so returned under the control of the controllerLiL-t link 16 asto receive thrust in line with its longitudinal center with avoidance oflateral strain upon the pitman. v

I claim:-, W

1. Ina baling press, alpitman, a power .2

mechanism comprising a power head adapted to engage the rear endoffsaid'pitman, a pull back lever eooperable with said power head andhaving'gslot and pin connection with said pitman, said pull'backleverand power head being movable about acommon axis, teeth formed onsaidpull back lever around said axis, a segmental gearmeshing acontroller link for guiding said pitman.

2. In a baling'press, atpitman, a power.

with said teeth and operable by :said power head for retracting saidpull back lever, and) mechanism comprising a power :head adapt- I ed toengage the rear endof said pitman,

a pull back levericooperable with saidipower head and having slot and"pin connection with said pitman, said pull back lever and power headbeing movable about acommon axis, means operableby said power headfor'retractingsaid pull back lever,sa-nda-'- controller link for guidingsaidlpitman;

3. In a baling press, a pitman, "a. power:

mechanism comprislnga power head adapt ed to engagethe rear end of saidpitman, a

pull back lever cooperable with said power head and having slot and pinconnection with said pitman, said pull back-lever and powerhead beingmovable about acommon axis, teeth formed on said pullback lever aroundsaid axis, a segmental gear meshing with said teeth and provided:witha'an abut-' ment adapted to be engaged by said power said pitman,the said pull backlever being 10 head, and aoontroller linkdfor guidingsaid provided with a shoe operable upon a part pitman pivotedto afixedipartof the baling of the balingd press beneath said lever, and 1press at a point remote from said axis. meansoperable by said power headfor oper- 4. In a dbaling press, the combinationwith ating sald pullback lever.

a pitman, of a power mechanism comprising HENRY L. WHITMAN.

a rotatable power head for :operating said a In the presence ofpitman, apull back lever cooperable with A. J MCCAULEY, 4

said power head and having connection with 1 E. B. LINN.

Copies of this patent maybe: obtained for five cents each, by addressingthe Commissioner 0! Patents,

Washington, D. G.

